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Adhesive tape for processing process protection

A tape and process technology, applied in the field of process protection tapes, can solve the problems such as the inability to apply the corners and radians well, the incomplete wrapping of the protective film, affecting the appearance and yield of the product, etc., to reduce the risk of edge warping , Perfect rework effect, good sticking effect

Active Publication Date: 2017-02-15
宁波启合新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the hard substrate PET, the PET protective film cannot be applied well to the corners and arcs, and cannot effectively protect the process; while the PE protective film, PVC protective film, and OPP protective film have soft substrates, but Due to the pressure sensitivity of the adhesive layer, the corners and radians cannot be perfectly applied during the application process, resulting in residual air bubbles. In this way, after a series of processes and peeling off the protective film, there will be residual air bubbles, which will affect the appearance and yield of the product.
Taking the case of an Apple mobile phone as an example, the general protective film cannot be completely wrapped due to too many corners and radians during the processing of the inner side of the case, resulting in a low product yield.

Method used

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  • Adhesive tape for processing process protection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An adhesive tape for process protection, characterized in that it includes a release film layer 1, a heat-sensitive adhesive layer 2, a pressure-sensitive adhesive layer 3 and a substrate layer 4 that are laminated in sequence, such as figure 1 shown. Wherein, the substrate layer 4 is a polyethylene film, the release film layer 1 is a silicon-based release film, and the heat-sensitive adhesive layer 2 is a rubber heat-sensitive adhesive. The thickness of the base material layer 4 was 30 μm.

[0029] The above-mentioned rubber heat-sensitive adhesive is made of the following components by weight: 45 parts of styrene-butadiene-styrene block copolymer, 55 parts of terpene resin, 1 part of alkane paraffin, 2,6-di 5 parts of tert-butyl p-cresol (antioxidant 264).

[0030] The preparation method of above-mentioned adhesive tape is as follows:

[0031] 1) Preparation of rubber heat-sensitive adhesive: respectively dissolving styrene-butadiene-styrene block copolymer and ter...

Embodiment 2

[0036] An adhesive tape for process protection, characterized in that it includes a release film layer 1, a heat-sensitive adhesive layer 2, a pressure-sensitive adhesive layer 3 and a substrate layer 4 that are laminated in sequence, such as figure 1 shown. Wherein, the substrate layer 4 is a polyvinyl chloride film, the release film layer 1 is a silicon-based release film, and the heat-sensitive adhesive layer 2 is a rubber heat-sensitive adhesive. The thickness of the substrate layer was 50 μm.

[0037] The above-mentioned rubber heat-sensitive adhesive is made of the following components in parts by weight: 50 parts of styrene-isoprene-styrene block copolymer, 60 parts of rosin resin, 5 parts of alkane paraffin, phthalate di 5 parts of octyl ester (DOP), 10 parts of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester (antioxidant 1010).

[0038] The preparation method of above-mentioned process protection adhesive tape is as follows:

[0039...

Embodiment 3

[0044] An adhesive tape for process protection, characterized in that it includes a release film layer 1, a heat-sensitive adhesive layer 2, a pressure-sensitive adhesive layer 3 and a substrate layer 4 that are laminated in sequence, such as figure 1 shown. Wherein, the substrate layer 4 is a polyethylene film, the release film layer 1 is a silicon-based release film, and the heat-sensitive adhesive layer 2 is a rubber heat-sensitive adhesive. The thickness of the substrate layer was 100 μm.

[0045] The above-mentioned rubber heat-sensitive adhesive is made of the following components by weight: 40 parts of styrene-ethylene-butylene-styrene block copolymer, 50 parts of petroleum resin, 2 parts of microcrystalline paraffin, 2,2' - 2 parts of methylenebis(4-methyl-6-tert-butylphenol) (antioxidant 2246).

[0046] The preparation method of above-mentioned process protection adhesive tape is as follows:

[0047] 1) Preparation of rubber heat-sensitive adhesive: respectively di...

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Abstract

The invention provides an adhesive tape for processing process protection. The adhesive tape for processing process protection is characterized by comprising a release film layer, a pressure-sensitive adhesive layer, a thermosensitive adhesive layer and a base material layer which are laminated sequentially. The adhesive tape for processing process protection has the advantages that the thermosensitive adhesive layer is non-adhesive at the initial period of lamination and is improved in peel strength after being heated to have fixing and protecting effects, so that bubbles or imprints generated when adhesive materials wrap shells can be reduced, and the processing process protection effect is improved.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of adhesives, in particular to an adhesive tape for process protection. [0003] 【Background technique】 [0004] With the rapid development of electronic products, the all-metal integrated body is one of the most popular elements at present. The all-metal integrated fuselage undergoes a series of surface treatments during processing, such as polishing, electroplating, spraying, etching, laser and a series of complicated processes. These processes necessarily require a material for process protection to avoid scratches and damage to other non-processed parts. [0005] At present, protective films such as PET protective film, PE protective film, PVC protective film, and OPP protective film are generally used to protect the non-processed parts. However, due to the hard substrate PET, the PET protective film cannot be applied well to the corners and arcs, and cannot effectively protect the process; while the PE ...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J153/02C09J145/00C09J193/04C09J157/02C09J125/16C09J11/08C09J11/06
CPCC09J7/243C09J7/245C09J7/25C09J11/06C09J11/08C09J125/16C09J145/00C09J153/02C09J157/02C09J193/04C08L2205/025C08L2205/03C08L2205/035C08K2201/014C09J2493/00C09J2475/006C09J2453/00C09J2427/006C09J2423/046C09J2423/106C09J2425/00C09J2301/122C09J2301/302C08L53/02C08L53/025C08L45/00C08L93/04C08L57/02C08L25/16C08L91/06C08K5/13C08K5/1345C08K5/12
Inventor 邵新萍
Owner 宁波启合新材料科技有限公司
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